Few lightened flywheel questions - FITTED

[tweed]

As said before mate you dont need to balance both together, try someone else. Its worth doing if the box is out i had one on my Vectra years ago, 15kg down to 7.5kg or 5kg cant remember exactly and was bought off the shelf from courtney so it wasnt balanced with the crank.

It made a noticeable difference, revved so much more freely and quicker.

He was asking what the difference would be if he had the crank done too. basically it's just the same as lightening the flywheel. it will be even more responsive.
But to see the real gains of lighten flywheel and crank you need the head to be able to rev 7500+rpm.

[neil1780]

Im not sure as i only had the flywheel. But ask yourself this, is it worth the expence of a bottom end rebuild for a lightend crank if you may not notice any difference, when you only need to change the gearbox?

I could see the point if you were rebuilding to a high spec, but i wouldnt bother if your not.

[Ess_Three]

ok neil.

say i get fly wheel lightened right? what if i get both lightened. what will the diffrence be between them?

On an 8v, with an otherwise standard engine, lightening the crank will be a waste of time and money, in my view.
The flywheel you will notice...the crank, you won't.

Lightened and balalnced cranks are great for high revving, high CR 16vs going to 8500 RPM (or mental spec 8vs)...not 8vs revving to 6500 RPM. No point.
It's a decent level of re-build to have the crank down...for little or no gain on an otherwise standard engine.

[sharki786]

ok il get the fly wheel done only then as i thought that there might be a bigger diffrence in having the crank done too. thing is that i dont want to be sendng the flywheel away as i rather have it done locally, but i dont know what to look for on google 

[Ess_Three]

ok il get the fly wheel done only then as i thought that there might be a bigger diffrence in having the crank done too. thing is that i dont want to be sendng the flywheel away as i rather have it done locally, but i dont know what to look for on google 

Seriously, buy yourself a spare O2O flywheel from a breakers for £20ish...and send it off to Hotgolf on GCTI. He's the man...you'll get a proper job done there from the expert....and at least you know it's done properly, by someone that knows what to take off, and from where.

[sharki786]

ess_three: how much did you have taken off and what is it like?

[Ess_Three]

ess_three: how much did you have taken off and what is it like?

Not sure how much comes off...approx half the weight I'd imagine.

Feels similar to adding 30 BHP or so.
It's a big difference, in anyones language.

[tweed]

ess_three: how much did you have taken off and what is it like?

Not sure how much comes off...approx half the weight I'd imagine.

Feels similar to adding 30 BHP or so.
It's a big difference, in anyones language.

Do think it's worth doing on a vr if I want more torque? I'm temped to get the schrick manifold and some cams to increase the torque just as much has hp
I know it will be beneficial regardless, but would like to hear your input, since you just about know everything to know lol

[thai-wronghorse]

Definitely worth doing on a VR6

[Ess_Three]

Do think it's worth doing on a vr if I want more torque? I'm temped to get the schrick manifold and some cams to increase the torque just as much has hp
I know it will be beneficial regardless, but would like to hear your input, since you just about know everything to know lol

I only know about what I've done...and a VR6 with a light flywheel, Schrick VRS and a pair of Schrick 268 came is a very quick revving, torquey, powerful engine.
A huge step on from the lazy revving, standard VR6.

The only other move I'd make it to better make use of the revs of the light flywheel/cammed VR6..so I'd fit a 3.67 FD from a 16v, and replace the awful standard final drive...to make it go even better.